/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.dolphinscheduler.plugin.alert.script;

import java.io.IOException;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public final class ProcessUtils {
  private static final Logger logger = LoggerFactory.getLogger(ProcessUtils.class);

  private ProcessUtils() {
    throw new UnsupportedOperationException("This is a utility class and cannot be instantiated");
  }

  /**
   * executeScript
   *
   * @param cmd cmd params
   * @return exit code
   */
  static Integer executeScript(String... cmd) {

    int exitCode = -1;

    ProcessBuilder processBuilder = new ProcessBuilder(cmd);
    try {
      Process process = processBuilder.start();
      StreamGobbler inputStreamGobbler = new StreamGobbler(process.getInputStream());
      StreamGobbler errorStreamGobbler = new StreamGobbler(process.getErrorStream());

      inputStreamGobbler.start();
      errorStreamGobbler.start();
      return process.waitFor();
    } catch (IOException | InterruptedException e) {
      logger.error("execute alert script error {}", e.getMessage());
      Thread.currentThread().interrupt();
    }

    return exitCode;
  }
}
